Door.



J. G. WALLACE & A. BELL.

DOOR.

APPLICATION Fl-LED Nov. e. 1913.

1,156,950, Patented 001;. 19, 1915.

l. G. WALLACE & A. BELL.

DOOR'.

APPLICATION FILED NOV. 6. i913.

' lf l Paeuted Oct-.19, i915.

2 SHEETS-SHEET 2.

y l l 42 a7??? ff v A Tram/EVS UMTED- JOHN e. WALLACE HAND ALFRED enti.,orrniiiannnrnin, rENivsYLvANIAf-ssisnons ro HALE ANnKILBURNaangaan,orjrHILnnnLrnrA, rENNsYLvANIA,.A Conromirroir' or nnii'aweitn.

Alipncaiionlmefiiipvemter eg'iai. .seriaimasafiaa y .T all whom t mayconce/M1..--

yBe it known thatv we, Jorn:V G. .WALLE and ALFRED BELL,citizensfofj-the United States, residing atPhilajdelphia, infktliecounty of Philadelphia and State oflPennlSylvania, have invented certainnew and iiseful Improvements in Doors, of whichrthe following isa-specication.

This invention relates to doors made largely or entirely of sheet-metalfand isdirected to the provisionof=` improved means l for ysecuringtogether `the rails and stiles vIn-the manufacture' of sheet-metal doorsi heretofore, it )has-been common to form the rails and` Stiles andYseciu'e these` together at i theirvends by `welding .or brazing them to,gethen hyy securingfthem in' any suitable manner to cornereboxes'located within the coevnersj' of the frame. In' accordance with thepresentinvention, the ends "of the outside stiles and rails are securedtogether by interlocking themone with another. Also the ends ofthe'cross or intermediate railor rails are interloeked withthecoactingstiles intermediate the ends of the latter. For the purpose. ofsuch interlocking, securing Idevices are provided upon the end ofeachpart projecting from the end vof that part and adapted to enter withinthe `fend orthrough an opening of the coacting part. Thesesef.

` within the frame., The rails and Stiles are 'hollowf and. are made ofvsheet-metal'by pressing Ysheet-metal strips' of the "requisite curingdevices arepreferably in the forni of loops or sheet-metal stripsdisposed trans verscly of the member to which they are se-' cured andtheloopson the adjacent ends of two adjacent frame-members are staggered?so that they it between each other. One or lmore keys are then insertedthroughI the coacting loops so as to secure the'two" framememberstogether. In this way, a very strong joint may bemade, and theconstruc--v tion-is` such that doors employing the invention'may be manufacturedat comparatively low cost. For securing the ends of a cross rail to'.the niembersnof the .frame coacting therewith, a somewhat similarconstruction l, mayi be employed.4 Theframe fmembers would havethetransversel vstrips or y loops formedl thereon at the; inner edge of the`frame-.1nember.amd'hetween theends of `the `Specification of'LettersPatent.

man

Patented.

oct. 19,191.11.;A

latter for coaction kwith similar loops or" stripson the endof'thevcrossrail.

f Whiletliie inyentin isof particular i1tilA i ity inf connection withsheet-meta-ldoors, we

wish it understood thatthe invention is not in other devices, such forinstance, as Winy dow sashes. l

a o u I I. limited 1n this respect, but may be employed ,Th'e'preferredembodiment of theinven-'i i ings, in which; i f

` tionfis illustratedin-the accompanying drawg *Figure-'lis a. frontQview` of a 'door constrlicted in accordance .with the invention,

gether, Fig.. '3 yis a. section Jon line -of 2, Fig. v1.1 is a sectionony line. 4-401 .I l "Eig 2,' Fig. 5 1s aperspective view of thesecuring'devices shown inFig. 2 and thekey ..15

coacting therewith, thesethreefparts" being tion employed oneendofthevcross rail, rEig. 7 is a sectional-view on line7f-f7 of "aFigS.

Referring to these drawings, a `door is vshown'fi'n- Fig.` 1 having a`frame consisting of stiles l0 and rails 11, a cross or interrnediaterail 12 extending. between 'the side vInen'ibers of the `frameaiidpanels 13 secured dimensions to a rectangular`,.crosssection..

changed-f as. desired,. but the construction separated'so as .to showtheirconstruc'tion, `Fig. v6 is adetail view partlyin elevation andpartly 1n section `showingthe,construc- .3F

Fig. 6, Fig. 8 is a sectional `detail view of a y The construction ofthese members may be shown herein is 'that which we prefer to ein- I'ploy. As here shown, each .rail orfstile is made. from a'fsingle strip,vof] sheet-.nietalfby' bending thev same on lines extending lengthwisethereof to a rectangular crosssection `andto` forni a flange atoneedgeof the strip inclosedriloyy agfold atfthe opposite edge. Thisfold andttheflange inclosed thereby form a.V flange llifon' the inner'.edge of the frarneinember to which the panelv 13 maybe 'sebiiredf y 1"In order to `seciireithe ends oftwo adja- .cent f:raine-nien'iloerstogether, a securing cleioo ies

vice is applied to each of such ends, these being fitted within the openends ot the rail and stile respectively, and secured thereto in suchposition that a portion of each projects from the end ot' its trainenieinber and is adapted to fit within the end of the adjacent framemember. The preferred construction of this securing device is that.'shown in Fig.v

low rail l1, as indicated in Fig. 3, and are secured to the sides ofthat rail in such position that the connecting parts 1U project`slightly beyond the end ol the rail. p'lhese parts 1G when thus arrangedforni strips or loops disposed transversely with respect to the rail andextending between the sides ot' the rail. This securing device coactswith another securingdevice secured to the adjacent end of the adjacentstile 10. This other 'securing device is ol the saine construction asthat above described and its position is reversed when applying it tothe end ot' the stile to which it is secured. 'As a result, theconnecting` parts or loops lo of one securing` device lie opposite thespaces between the loops on the other securing device When the ends ofthe. stile and rail 10 and 11y are brought together, the loops 16 on theend of each"1ne1nber pass into the spaces between the loops on the endot the other nieinber so that the parts are in the positions indicated.by Fig5- 2 and 3. l A key 17 is then inserted through these loops.rl`he partsare accurately niade so that when the key 17 isdriven throughthese loopsthe inenibers are brought together so thattheir initeredendsare drawn together to niake a tight lit. it desired,ithe key 17 inaybe pl such length that its outer end extends iiito the opening throughwhich it was inserted, and is iiush with the exterior surfaces ol5 thecoacting stile and rail. rl`his construction is shown in Fig. 2 whereinthe end olf' key 17 is shown as tiled oli' so as to be [lush with thesurfaces ot the oulcr edges ot the stile and rail at theI junctionIthereot.

lf desired, the key `may be made slightly shorter and the inateriall atthe outer edges oit' the two ineinbers may be bent down upon the end ofthe key ai'ter the latter has been driven to its iinal position andthese edges of the two members inay then bc welded together. Also, theflanges 1l on the two ineinbers may be'sccured together by welding,` if

desired. ln this 'ay. a tight joint possessinf@y great strength issecured byinterlockiin;` the ends ot' the two traine ineinbers ratherthan by securing thein together by brazing or welding or employingscrews or rivets to secure the ends ot the nleinbers to cornerboxes. Theinitered ends ol" the two ineinbers are drawn into close engagement andthe material on these ends is supported by the securing device lyingwithin the adja- `cent ends of the inenibers.l

Referring now to Figs. (i and 7, the construction employed in' securingthe ends ot the cross rail 12 to the stiles 10 will be described.Securing. devices 1S) siinilar to those above described aresecuredwithin the ends ot' the hollow cross rail 12 so that portions ,thereofproject from the ends of the saine and are adapted to enter within thesideinelnbers l() of the traine. l The material at the inner edge ofcach side-member 1() interniediate the ends ol -the side-member is eutaway tor a distance e-qual to the width o't' the cross rail l2 and intheopeningT thus provided in the stile 10a securing device 2() is securedpositioned so that a portion thereoft projects from the. stile.. whichportion is adapted to entier within the cross rail 12. r1`hese securingdevices 1f) and 2() have staggered loops 10 formed thereon in theinanner above described. In securing this cross rail l2 to the. stiles10, two keys are einployed instead oi the one shown in Fig. 2. lt willbe apparent that it' a key ot the type shown in Figs. 2 to 5I wereemployed in connection with the cross rail l27 it would be necessary tocut away the flange 14- 'for a substantial distance on one side oi thecross rail l2 to perniit of inserting thel key. Such cutting away olflange 11 would be highly undesirable because of the weakening eli'ecton the structure and because it would detract troni the appearance oithe completed door. 'l`wo keys are therefore einployed and these areboth inserted.through an opening provided theret'or on che, side otflange li. This opening is indicated in l*`ig.7. lt is toi-ined bycutting away the edge ot the cross rail l2 at the end of the saine andon one side oi the [lange l-i ot' the stile 1t). A comparatively narrowkeyl is inserted through the opening thus provided and through the loops1o in the securing devices 1) and 2O by ay lengthwise movement ot thekey and when the ykey has been passed through all ot the loops 113` itis lnoved laterally in those loops. A second key 22 is then inserted inthe opening-.aint nioved lengthwise until it passes through all o'ltheloops 1G. The end ot this key 22 is curved as shown at 23 so that thelengthwise Inovenient of this key will torce the Akey 2.1 laterally tothe position it should occupy. 'lhe two keys 21 and 22 together are ot awidth equal to the width of the one key 17 and. by using ltwo such keysand inserting them in the manner above described, it is unnecessary tocut away the flange 14; of the stile 10 on either side of the cross rail12. 1

The cross rail 12 lis here shown as formed from twofstrips ofsheet-metal 24 and 25, the former being flanged at its edges and thelatter provided with folds which inclose these flanges so that flanges26 are provided on both sides of the cross rail 12 similar to theflanges 14 on the inner sides of'the stiles 1,0. In preparing the crossrail, for eoaction with the stiles 10, the ends ofthe flanges 26 arecutaway for a distance back from the ends of the cross rail equal to theWidth of the flanges 14 as shown in Fig. 61'1 In Figs. S and 9, a slightmodification of the construction shown in the other figures isillustrated. The modification consists in the employment of two roundkeys instead of asingle flat strip and the shaping of the securingdevices to eoact with the round keys. Byreference to these figures, itwill' be seen that each loop 16 is bent near its ends to a semi-circularcross-section as shown at v 27. These semi-circular parts on the strips16 are adapted to receivekeys 28 in the form of lengths of'round wire.In other respects, this construction is like that above described.Having described our invention, what we claim as new therein and desireto secure by Letters Patent of the United States is:

1. In a door, the combination of a frame comprising hollow sheet'- metalstiles and rails, a stile and rail having abutting mitered ends, a pairof sheet-metal securing devices, secured respectively within the stileand rail at the adjoining ends thereof, each having parallel flangessecured to the inner surfaces of the side sheets of its frame member,with integral metal loops extending transversely between said flangesand within the adjacent frame member, the loops on one device extendinginto spaces between the loops on the other device, and a metal'keyinserted through all of said loops and lying within said frame parallelto the mitered joint of said rail and stile, and serving to maintain themitered ends of said rail and stile in close engagement, said key beingof such length as -to extend between the inner and outer sheets of theframe,r and to. contact the same, substantially as set forth.

2. In a door comprising hollow sheet metal Stiles andA railsseouredtogether, a pa.t r of interlocking sheet-metal channels onehaving parallel flanges secured to the inner surfaces of the sidefsheetsof a rail ad'- jacent the end thereof, and integral loops extendingbetween said flanges and into the interior of the adjacent stile, theother having parallel flanges secured to the inner surfaces of the sidesheets of the stile to be connected to said rail, and having integralloops extending into spaces between" the loops of the other channel, andmetal ley means inserted through all of said loops and serving to drawsaid stile and rail into close'engagement, substantially asset forth.

3. In a door, two hollow frame-members,

securing devices secured within theaend of each of said members,projectmg vtherefnoxnl and adapted to enter the other member, aii'dffftwoA keys coacting-with said securing devices to secure sald memberstogether, one of said keys being movable lengthwise and then ,lat-

position into space occupied by the other key prior to its lateralmovement, substantially as set forth.y i

ab In a door comprising a frame made of ssiles and rails, thecombination of a hollow sheet-metal cross rail, a hollow sheetmetalstile, the intermediate portion of which is to be connected to .the endof said rail, asheet metal channel having flanges secured to the innersurfaces of the side sheets of lthe rail vadjacent the end thereof, andintegral loops extending between said flanges and "through an openingformed in the stile into the interior of the latter-,a sheet metalehannelhaving flanges similarly secured within the stile, adjacent saidopening, and having integral loops extending through said opens erallyinto securing position and the other key being movable lengthwise intosecuring ing into the interior of the rail betweenv theJ 'loops of saidfirst channel, said rail and* W'itnesses:

JOHN B. IxILUnN, WM. J. EARNsHAw.

